Edelbrock Standard-Flow 2.5" Hg Single-Stage Power Valve for Holley-Style Carburetors

Improve throttle response and fuel enrichment with this Edelbrock standard-flow single-stage power valve calibrated to open at 2.5" of mercury vacuum. Designed for Holley-style carburetors, this power valve uses engine vacuum to regulate additional fuel flow under heavy load and wide-open throttle conditions, helping eliminate hesitation, lean stumble, and bogging.

Features and Benefits:
- Designed for Holley-style carburetors
- Standard-flow single-stage power valve
- Opens at 2.5 inHg engine vacuum
- Supplies additional fuel under heavy load conditions
- Helps eliminate hesitation, bogging, and lean stumble
- Promotes smooth and consistent power delivery
- Great for carburetor tuning and performance applications
- Includes installation gasket
- Made in the USA

Ideal for street and performance carburetor tuning, this USA-made power valve delivers smooth and consistent power during acceleration and high-load operation. Compatible with a wide range of Holley, Quick Fuel, and Demon carburetors, it includes the required gasket for straightforward installation and reliable sealing.

Additional Notes:
- Selecting a power valve requires matching opening vacuum to your engine's idle vacuum reading (divide idle vacuum by 2).
- Incorrect selection can lead to rich or lean acceleration conditions.
- Always verify carburetor fuel level, jetting, and vacuum signal during tuning.